Pattern device for shuttle-box-operating mechanism for looms



(No Model.) 2 Sheets-Sheet 1. l

H. WYMAN.

PATTERN DEVICE FOR SHUTTLE BOX OPERATING MECHANISM FOR LOOMS. No.364,696. Patented June 14, 1887.

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(No Model.) 2 Sheets-.-Sheet 2..

WYMAN.

PATTERN DEVICE FOR sITUTTLE BOX OPERATING MEGHANISM FOR LOOMST No.364,696. v Patented June 14,1887.

UNITED STATES PATENT ()EEIoE.

HORACE VYMAN, OF \VOROESTER, MASSACHUSETTS.

PATTER N DEVICE- FOR SHUTTLE-BOX-OPERATING MECHANISM FOR LOOMS.

SPECIFICATION forrging part of Letters Patent No. 364,696, dated June14, 1887.

Application filed D.c.'rnbcr f), 1881. ScrialNo. 47,458. (No model.)

T0, at whom it may concern:

Be itknownthat I, HORACE WVYMAN, of the city and county of Worcester,State of Massachusetts, have invented an Improvementin Looms, of whichthe following description, in connection withthe accompanying drawings,is a specification.

This invention has for its object to auto.

matically suspend the movement of the main pattern-chain for theshuttle-boxes of a loom whenever it is desired to employ for a number oftimes in succession any one shuttle, such suspension of movementenabling the said chain to be materially shortened.

, My invention consists of certain organizations of mechanical devicesfor such purpose, as will be hereinafter .more fullyset forth, andspecified in the claims.

This invention is an improvement on United States Patent No. 197,754,dated December 4,

l 1877, heretofore granted to me, to which referonce may be had,whereina series of levers orfin gers are operated directly by theindicators ofthe auxiliary pattern-surface to control the J movements of ashuttle-box mechanism.

My invention also consists in an auxiliary pattern-surface and'mcchanismto control the stopping and starting of the main patternchain, the saidauxiliary pattern-surface being governed by a row of indicators carriedby the. main pattern-chain.

Figure 1 represents in partial vertical crosssection a'sufficientportionof a loom to enable my present invention to be understood. Fig. 2' is aview of the parts shown in Fig. 1 and part of the other end of the loom-frame to illustrate the filling stop mot-ion; Fig. 3, a rear side viewof the upper part of the loom shown in Fig. 1; Fig. 4, a section of Fig.2 on the dotted line w w; and Fig. 5 is a detail showing theshuttle-boxpatternchain, its cylinder or hub, and shaft, and fingers restingthereon, and part of their connections with the shuttleboxes. 1

A ratchet, 2, is secured directly to the inner end of the shaft, Z whichcarries the usual pattern-chain, e, which (through suitable leversor'fingers, i, resting thereon, as in my said patent, such fingers beingherein shown in dotted lines in Fig. 2 and in full lines in the detailFig. 5,) determines the order in which the cranks for shifting theshuttle-boxes shall operate, the said lingers in practice beingconnected by wires or connectors r'with the shut tleboX-movingmechanism, as in the said patent, the indicators of the pattern surfaceor chain 6 acting as cams upon the levers or fingers i to move the same.

The ratchet 2 is engaged and moved by the pawlf on a pawl-carrier, B,connected by rod g with the lever h, actuated by camil. (Shown in dottedlines, Fig. 1.) This lever is connected with the hooked rod 7a, which isextended through the sliding bar m. The lever h has connected with it anauxiliary arm, a, held up 1872, the said finger being in line with thesliding part of the weft-fork 40. The shaft of the pattern-chain will beprevented from overrunning in any usual way-as, for id stance, asrepresented in United States Patents No. 491, dated November 25, 1837,and N 0. 11,933, dated November 13, 1854. If the pawl f dropssufficiently to engage the ratchetwheel 2, the pattern-chain e will bemoved at each thrust of the pawl. To obviate this and lift the pawl f 6when the rolls or indicators of a bar of the pattern-chain are to beused to enable any one shuttle to be used for two or more successiveshots, the said pawl has a pin, 3, which extends therefrom over the endof the pawl-lifter 7, pivoted at 8, between the main pattern surface orchain and the auxiliary pattern-surface. The rear end, 9, of thepawl-lifter 7 is extended under and so as to be directly acted upon bythe auxiliary shuttle box pattern surface or cam,which is composed ofseveral sectional concentric plates, 10, so

cured by bolts 12 to a ratchet-wheel, 13, on a stud, 14, held in abracket, 15, attached to the loom-frame A. One or more of these plates10 may be provided with a depression, as at 16, Fig. 3, to act as a camor indicator to enable the rear end, 9, of the pawl-lifter 7 to rise andpermit the front end of the said lifter to fall and with it permit thepawl f to engage the teeth of and move the ratchet-wheel 2 one or moretimes in succession, according to the requirements of the cloth beingwoven.

The ratchet-wheel 13, which carries the auxiliary shuttle-box patternsurface or cam, has reciprocating above it, as herein shown, a pawl, 18,having the same center of motion as the pattern-chain-moving pawl f.This pawl 18 may be made to engage the teeth of the ratchet 13, and moveit and the auxiliary shuttle-box patterirsurfaee at every rotation ofthe cam-shaft D; or, if desired, the said pawl 18 may be controlled asto its times of engagement with the ratchet 13 by a pawlrest, 19, havingits pivot or fulcrum between the auxiliary patternsurfaee and thepatternchain c, and having an arm, 20, (see Figs. 2 and 3,) which isextended backward over one line of indicators or rolls and spaces of theusual main pattern surface or chain, c, the said arm being held downthereon by the spring 22, connected with the said pawlrest and with anadjustable pin, 24, in the bracket 23, or by the weight alone of the arm20.

It will be supposed that the ratchet 13 has twelve teeth, and that itsattached cam has but one depression, 16. If ratchet 13 be moved by pawl18 one tooth at a time, the pawlf" will be lifted for an intervalcovering eleven movements of the said pawhduring which time the ratchet2 and chain 0" will remain at rest.

The indicators or rolls of the pattern-chain a", which act on the arm 20of the pawl-rest 19, are of different diameters or sizes, and will be soarranged as to move the pawl-rest 19 more or less to enable the pawl 18to remain in engagement with the ratchet 13 during more or less of itsmovement to thus effeet the movement of the ratchet 13 of the auxiliarypattern-surface a distance equal to three teeth, or two teeth, or onetooth, and consequently the said auxiliary pattern-surface may be madeto suspend the action of the pawl fduring intervals covering 11, 5, and3 of the movements of the said pawl.

The pawl 18, when in its lowest position, hasamovement sufficient toactuate the ratchet 13 for aspace of three of its teeth, but by movingit to different heights by different-sized rolls of the mainpattern-chain, acting directly on the arm 20 of the pawl-rest 19, thesaid pawl 18 may be made to move the said ratchet a distance equal totwo teeth or one tooth, or by causing it to become completely lifted,owing to thcabscnce of a roll, the said pawl 18 will not engage theratchet at all. In this way a very short main pattern surface or chainmay be made to operate a set of four or six shuttle-boxes and enable anyusual desired number of successive picks to be put in with the thread ofthe same shuttle from any one box.

The pawlcarrier for pawls f and 18 is marked 13, and it is pivoted at13?. (See Figs. 1 and 3.)

To always insure correct movement of the two pattern-surfaces. withrelation to each other, I take the movement for both from theoscillating pawl carrier B, the movement thereof in one directionactuating one patternsurface, as, for instance, the main pattern surfaceor chain, and in the opposite direction the other surface, as, forinstance, the auxiliary pattern-surface, by which means each surface isenabled to properly operate the parts to be moved by it. I

I so arrange the means to move both the auxiliary pattcrif'surfaee andthe main pattern surface or chain and also the intermediate partsbetween them that an indicator on the main pattern surface or chainserves to stop the said chain by effecting the starting of the auxiliarypattern-surface, and through the latter causing the elevation of thepawl-lifter 7, and the said chain is started when the depression 16 ofthe auxiliary pattern-surface comes above the end 9 of the pawl-lifter7. Maintaining the main pattern surface or chain c at rest while thepawl 18 actuates the auxiliary pattern-surface enables the employment ofa very short chain c.

The main pattern-chain indicators 60 61 62, which act to determine thecngagcmcntofthe auxiliary patternsurface-moving pawl 18 with itsratchet, are made of different heights, and by their impingement uponthe part 20 of the pawl-rest 19 vibrate said pawl rest correspondinglydifferent distances, and according to the extent of its vibration causethe pawl 18 to engage the teeth of and turn the said ratchet a distanceequal to two or three of its teeth, thereby moving the said auxiliarypattern-surface over variable distances. By this means the time requiredfor effecting a revolution of such surface and bringing the depression16 again in the position shown in Fig. 3 is made variable according tothe height of the indicator, and the duration of the periods of rest ofthe main pattern surface or chain is thereby determined.

When the filling breaks, the bar at is lifted, as described in my PatentNo. 197,754, of Dccember4, 1877, referred to, which causes the rod g" tostop, and the pawlsf and 18 then cease to operate.

The employment of the pawl-lifter 7, arranged as shown and described,and moved directly by the auxiliary pattern-surface, enables the latterby that one lever to positively hold out of operation the pawl whichdirectly engages and moves the pattcrn chain.

The lingers i have their fulcra on an eccencentric sleeve, placed on thestud 52, and the said fingers are extended horizontally over theshuttle-box chain 0, there being a row of indicators for each finger,the fingers being more or less in number, according to the number ofcranks to be moved and cells in the shuttlebox.

In this my invention I have arranged the lever which lifts the pawl fromthe ratchet on the shaft of the shuttle-box patternchain, so

- that its opposite end is acted upon directly by the auxiliarypattern-surface, thus doing away with other intermediate levers andsimplifying the parts. So, also, in my invention the pattern-chain forthe shuttle-boxes at times remains at rest, the same row of rollsthereon serving to insure several successive picks of V the sameshuttle, but all in different sheds.

Idonot claim the employment of an auxiliary pattern-surface forcontrolling the formation of sheds.

Instead of the pattern chain e, I may employ any other usual or suitablepattern-sun. face.

I claim 1. The series of fingers adapted to be connected with devices toeffect the movement of a series of shuttle-boxes, the auxiliarypattern-surface, and the main patternsurface or chain provided with rowsof indicators on which the said fingers rest, and which are adapted toact as cams to move the fingers by the rotary movement of the saidpattern surface or chain, and with a separate row of indicators tocontrol the times of operation and of rest of the auxiliarypattern-surface, combined with intermediate connecting mechanism,substantially-such as described, between the main pattern surface orchain and the auxiliary patternsurface to 'control the stopping andstarting of the said pattern-chain and the auxiliary pattern surfacealternately for a consecutive number of movements, and with' means formoving the said main pattern surface or chain and the said auxiliarypattern surface, substantially as described.

2. The series of fingers adapted to be connected with theshuttle-box-moving devices, the main pattern surface or chain carryingrollers or indicators constructed to act as cams to move the saidfingers, and a line of indicators to govern the position of thepawl-rest, the ratchet 2, and pawl f combined with the auxiliarypattern-surface, the ratchet 13, pawl 18, the pawl-carrier carrying bothpawlsf and 18, and means for operating said pawl-carrier, the pawl-rest19 20, acted upon directly by the indicators of the chain and engagingdirectly with the pawl 18, and'the pawl-lifter 7, acted upon directly bythe auxiliary pattern-surface and engaging directly with the pawl f,said pawl-lifter and pawl-rest being pivoted between the pattern-chainand auxiliary patternsurface, substantially as described.

3. The main pattern surface or chain provided with indicators to controlthe movements of a series of shuttle-boxes, its ratchet and pawl, theauxiliary pattern-surface constructed substantially as described, itsratchet and pawl, a carrier common to the two pawls,'means for actuatingsaid carrier, and pawl-lifter 7, operre st to lower the said pawl andstart the movement of the auxiliary patternsurface, and rotate thelatter to move the said pawl-lifter and leave the main pattern surfaceor chain at rest, substantially as described.

4. In combination, a main pattern surface or chain carrying rows ofindicators to control the movements of shuttle-boxes, and also carryinga secondary row of indicators of different heights to control themovement of an auxiliary pattern-surface, means for operating the saidchain, a pawl-rest operated by the secondary indicators, an auxiliarypattern-surface with its actuating ratchet and pawl, and means to movethe pawl, whereby the indicators of different heights control theauxiliary pattern mechanismto effect a greater or less range of movementthereof, according to the heights of the indicators on the main patternsurface or chain, substantially as described.

5. The pattern surface or chain carrying the indicators to. control themovement of a series of shuttle-boxes, and also carrying a secondaryline of indicators of different diameters or heights, its actuatingratchet-wheel and pawl, and means to actuate said pawl, and thepawl-rest operated by the said chain,combined with the auxiliarypattern-surface, its actuating ratchet and pawl, ineans'to move saidpawl, and the pawl-lifting lever 7, operated thereby to control themovement of the main patternsurface, substantially as described.

6. An auxiliary pattern-surface, its ratchetwheel, pawl 18, means tomove the said pawl, a pawl-rest having an arm, 20, a pattern-chainprovided with rolls of different diameter to move the said rest fordifferent distances to enable the pawl 18 to move the auxiliarypattern-surface for a distance equal to one, two, or three teeth,combined with the pawl-lifter 7 and pawl f, and with means to move saidpawl f, the absence of a roll of the patternchain from under the saidarm 20 causing the pawl-rest to lift the pawl 18 and determine theduration of rest of the main pattern-surface, substantially asdescribed.

In testimony whereof I have signed myname 'to this specification in thepresence of two sub scribing witnesses HORACE WYMAN, \Vitnesses:

H. L. ADAMS, J. B. SYME,

IIO

